currently_used_sites.go

package main

import (
	"sort"
)

type Website struct {
	Url            string
	Label          string
	UserCount      int
	UserCountLabel string
}

type ranking []*Website

func (r ranking) Len() int {
	return len(r)
}

func (r ranking) Less(i, j int) bool {
	return r[i].UserCount > r[j].UserCount // we want it in the reverse order
}

func (r ranking) Swap(i, j int) {
	r[i], r[j] = r[j], r[i]
}

func SortWebsites(sites []*Website) {
	sort.Sort(ranking(sites))
}